For decades, paleontologists debated whether fossils were of a young T. rex or a species called nanotyrannus. A new study ...

A recent study suggests the unique geology of an area in Wyoming makes it a trove of unusually preserved fossils ...

The duck-billed dinosaur was only a few years old when it died. Scientists now believe the species had hooves on its feet.

How did these different dinosaur species interact? Did they hunt different prey? What did T. rex adolescence really look like ...